High-pressure crude-oil motor



E.'SCHAEREN HIGH PRESSURE CRUDE OIL MOTOR Filed Dec. 15, 1921 INVENTI: R (QM/t QM BY A'ITB RN 5Y5 Patented Oct. 18, 1927.

UNITED STATES I PATENT OFFICE.

DIESELENGINE (10., OF ST. LOUIS, MISSOURI.

HIGH-PRESSURE CRUDE-OIL MOTOR.

Application filed December 15, 1921, Serial No. 522,677, and in Switzerland August 8,1921.

It is known in high pressure crude oilmotors to effect the starting combustion process of the fuel introduced without the admixture of atomizing air in an auxiliary or antechamber, which is inpermanent connection with the working cylinder, in order to force the ignited fuel into the working cylinder by means of the increasing pressure which occurs in the antechamber during ignition, for the purpose of thoroughly mixing the fuel with the oxygen present there. In these known motors the propagation of the combustion process from the antechamher to the working cylinder has been rendered diflicult up to the present, in that the fuel ignited in said antechamber was led into the workin cylinder only in company with the gases 0 combustion formed during ignition.

The invention relates to a solid injection high pressure crude .oil motor, in which the initial combustion of the fuel takes place in an antechamber.

The inventionconsists in surrounding the jet of fuel with a constantly A mode of execution according to this 1nvent1on is shown in the drawing.

a is'the working cylinder, 6 .the piston, c

the inlet valve, d the cooling chamber and e the antechamber of the crude oil-motor connected with the working cylinder bymeans of channels fl Said antechamber according to the invention is of such construction that the central space e passed by the jet of fuel, is surrounded at its upper side with an annular space 9 freely communicating with the former, which without being1 passed by the' jet of fuel is only swept by t e latter tangentially. In consequence of the arrangement of this annular antechamber space it has become possible, after ignition and during the assage of. the fuel into the working cylin er to admit fresh combustion air,'and thus to ensure amore perfect combustion in the working cylinder than up to the present.

I claim:

of a primaryiexplosion c amber in communication with the cylinder, said chamber com- In a fuel injection en ine the combination prising a tubular space adjacent the cylin- V .der and a second space extending transversely of the first space and of a depth less than the width of the first s ace, and a water 'acket so enclosing said 0 amber that the interior walls of both of said spaces are equally subject to the cooling action of the water jacket. I

In testimony whereof I have aifixed my signature.

ERNST SCHAEREN.- 

